First stop your docker service
stop-service docker
Create a new folder called daemon.json in the folder C:\ProgramData\docker\config and then put the following content inside, to set a new folder for your images.
{
"data-root": "d:\\dockerdata"
}
Then restart the Docker Service.
Restart-Service Docker
The images won’t be transferred to the new folder, so you’ll have to do that afterwards manually.